From a78c6f5956a949b496a5b087188dde52483edf51 Mon Sep 17 00:00:00 2001 From: Atish Patra Date: Thu, 1 Oct 2020 12:04:56 -0700 Subject: RISC-V: Make sure memblock reserves the memory containing DT Currently, the memory containing DT is not reserved. Thus, that region of memory can be reallocated or reused for other purposes. This may result in corrupted DT for nommu virt board in Qemu. We may not face any issue in kendryte as DT is embedded in the kernel image for that. Fixes: 6bd33e1ece52 ("riscv: add nommu support") Cc: stable@vger.kernel.org Signed-off-by: Atish Patra Signed-off-by: Palmer Dabbelt --- arch/riscv/mm/init.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index ca03762a3733..f750e012dbe5 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -515,6 +515,7 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa) #else dtb_early_va = (void *)dtb_pa; #endif + dtb_early_pa = dtb_pa; } static inline void setup_vm_final(void) -- cgit